Home / 858,797.40-1,287,159.30-437,856.60

Finding the Fourth Proportional to 858,797.40, 1,287,159.30 and 437,856.60

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Solution

The fourth proportional to 858,797.40, 1,287,159.30 and 437,856.60 is: 656,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,797.40 : 1,287,159.30 = 437,856.60 : x
  2. Step 2: Convert to fraction form
    858,797.40/1,287,159.30 = 437,856.60/x
  3. Step 3: Cross multiply
    858,797.40x = 1,287,159.30 × 437,856.60
  4. Step 4: Simplify right side
    858,797.40x = 563,591,194,756.38
  5. Step 5: Solve for x
    x = 563,591,194,756.38/858,797.40
  6. Step 6: Final answer
    x = 656,256.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.